Data storage device


A data storage device is a device for recording (storing) information (data). Recording can be done using virtually any form of energy. People have been storing data for thousands of years, by pictures and writing. Modern storage device may hold information, process information, or both. Most often the term is used with computers. Data storage devices can permanently hold data, like files.

Electronic data storage is storage which requires electricity to store and get back that data. Most storage devices that do not require visual optics to read data fall into this category. Electronic data may be stored in either an analog or digital signal format.

Contents

Terminology


An organic brain may or may not be considered a data storage device.[2]

All information is data. However, not all data is information.

Data storage equipment


Any input/output equipment may be considered data storage equipment if it writes to and reads from a data storage medium. Data storage equipment uses either:

The following are examples of those methods:

Portable methods

Semi-portable methods

Inseparable methods

Recording medium


A recording medium is a physical material that holds data expressed in any of the existing recording formats. With electronic media, the data and the recording medium is sometimes referred to as "software" despite the more common use of the word to describe computer software.

Ancient and timeless examples

Modern examples by energy used

Modern examples by shape

A typical way to classify data storage media is to consider its shape and type of movement (or non-movement) relative to the read/write device(s) of the storage apparatus as listed:

Related pages


References


  1. Gilbert, Walter (Feb 1986). "The RNA World". Nature. 319: 618. doi:10.1038/319618a0 .
  2. Ray Bradbury, Fahrenheit 451, 1950, 1953 pp:150-152, ISBN 0345342968
  3. Aaron P. Nelson and Susan Gilbert, Harvard Medical School Guide to Achieving Optimal Memory, Mar 2005, page 66
  4. Bekenstein (2003) foresees that miniaturization might lead to the invention of devices that store bits on a single atom.

Bibliography


Other websites









Categories: Storage devices




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